Machine for operating on paper



H.'G. WIDMER. MACHINE FOR OPERATING 0N PAPER.

APPLICATION FILED MAY'H, 1917.

Patented D80. 21, 1920.

6 SHEETS-SHEEI l- H. G. WIDMER.

MACHINE FOR OPERATING 0N PAPER.

Patented Dec. 21,1920.

7 1. v: A M D E L H N O H A c U P DI A 6 SHEETS-SHEET, 2.

WITNESS v H. G. WIDM'ER.

MACHINE FOR .OPERATINGfiN PAPER. APPLICATION men MRYH, I917.

Patented Dec. 21, 1920.

e SHEETS-SHEET s.

"EEEPJELJ WITNESS w? INVENTOB H. G. WIDMER.

MACHINE FOROPERATING ON PAPER.

APPLICATION FILED MAY I l, I9I7- 1 Patented Dec. 21,1920.

TTORNEYS H. G. WIDMER.

MACHINE FOR OPERATING 0N PAPER.

Patgnted Dec. 21, 1920.

6 SHEETSSHEEI 5 APPLICATION FILED MAY H, 1917.

w ll l sl INVENTOI? syvlz w/mEss;

H. e. WIDMER. MACHINE FOR OPERATING 0N PAPER.

APPLICATION FILED MAY H, 1917- Patented Dec. 21, 1920.

6 SHEETS-SHEET 6.

UNl'I'lilD fiTATES PATENT OFFICE.

HOWARD G. \VIDMER, OF BROOKLYN, NEW YORK, ASSIGNOIR. TO ARKELL SAFETY BAG COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

MACHINE FOR OPERATIFG ON PAPER.

Specification of Letters Patent.

Patented Dec. 21, 1920.

Application filed May 11. 1917. Serial No. 167,855.

To all wrlom it may concern Be it known that 1, HowAnD G. WmMnR, a citizen of the United States, and a resident of the borough of Brooklyn, county of Kings, and State of New York, have invented certain new and useful Improvements in Machines for ()perating on Paper, and More Particularly for Forming- Tubes from Sheets of Paper Fed Thereto, of which the following is a specification, reference being had to the accompanying drawings, which tlorm a part hereof.

The invention, considered as a whole, seeks particularly to provide a machine whereby sheets of paper may be out off from a continuous web of crinkled paper fed thereto, then folded transverse to the web so as to bring together the ends of the sheet and then securely seam together the meeting edges of the paper, the machine operating automati ally and continuously to carry out its operation of feeding, cutting, folding, seaming and delivering in an economical manner.

The invention consists of the various features and their arrangement and. combination hereinafter pointed out.

In the accompanying drawings forming part of this specification, and in which like referen e numerals designate corresponding parts, the invention and its various features are shown in the preferred form and are embodied in a complete operative machine.

In the drawings,

Figure l. is a side elevation of the machine.

Fig. is a sectional elevation of the principal pa ts of the machine taken on the line 2-2 of Fig. 3.

Fig. 3 is a front elevation looking in the direction ofthe arrows 3 of Fig. 1 and showing the feed and cutting rolls, parts being broken a way.

Fig. is an elevation looking in the" di rection of the arrow 4 and showing the seaming and pasting rolls, parts being broken away. i

Fig. 5 is an end elevation of portions of the feed and cutting rolls showing the cutting mechanism associated therewith.

Fig. i is a plan view of the upper roll shown in Fig.5 looking from beneath.

Fig. 7 is a plan view of the lower roll shown in 'Fig 5 and showing the cutting knife carried by said roll; v

Fig. 8 is a sectional elevation taken on the line 8-41 of Fig. 7.

Fig. 9 is a sectional elevation taken on the line 9-9 of Fig. 8.

Fig. 10 is an end elevation showing parts of the upper feed roll and of the associated seaming and pasting roll.

Fig. 11 is a plan view of the structure shown in Fig. 10 looking in the direction of the arrow 10.

Fig. 12 is an end elevation showing parts of the seaming and pasting rolls.

Fig. 13 is a plan view of a portion of the lower seaming and pasting roll shown in Fig. 12, taken in the direction of the arrow 13 of Fig. 12, parts being omitted.

Fig. 14 is an end elevation of the same seaming and pasting roll showing the seaming elements carried by this roll in their normal position.

Fig. 15 is a plan view showing one end of the roll shown in Fig. 14.

Fig. 16 is a view similar to Fig. 1 1 but showing the seaming elements in different position.

Fig. 17 is a section of a detail on line 1717 of Fig. 18.

Fig. 18 is a plan view of Fig. 17.

Figs. 19 and 20 are details, the former taken on line 19'-19 of Fig. 1 when the re ceiving pan has been retracted.

Referring now to the particular structure shown in the drawings, 1 is the main frame of the machine oii which are mounted the various moving elements. The driving shaft 2 carrying the driving pulley 3 carries a gear 4!: which meshe with the gear 5 fixed on one end of the shaft 6. Gear'o meshes with and drives gear 7 fixed on the shaft 8, on which shaft is fixed the seaming and pasting roll 9. Gear 7 meshes with and drives gear 10 fixed on the shaft 11, on which shaft is fixed the creasing and paste applying roll 12.

Shaft 6 also carries on its end opposite from gear 5 a'gear 16 which meshes with and drives gear 17 fixed on the shaft 18 on which shaft is mounted the feed and cutting roll 19. Gear 17 meshes with and drives a gear 20 fixed on shaft 21 which shaft'carries the feed and cutting roll 22 cooperating with roll 19.

The web of crinkled paper 23 passes over a roll 24: driven by a belt 25 from a pulley 13 on shaft 121. The web then passes over two fixed rods 26 and 27 and between the rolls 19 and 22. The rod 26 is carried by and between two guide disks 28 fixed on the ends of a rod 29 supported by posts 30. The rod 27 is similarly mounted and arranged. The roll 24 is driven just fast enough to produce a certain amount of slack in the web just before it passes over rod 26, as indicated in Fig. 1, thereby facilitating an easy and uniform feed of the web to the machine. Surrounding the shaft 21. at its ends are two sleeves 31 and 32 which are fixed against rotation in the boxes and 34 supporting the shaft. On these sleeves 31 and 32 are two stationary cam 35 and 36. 37 is a rocl shaft mounted in the roll 22 and carrying a series of arms 38 provided with pins 39 at their outer ends, see Figs. 3, 5 and 6. The ends of the rock shaft 37 are provided with fixed arms 40 and 41 having rollers at their outer ends riding on the cams 35 and 36. A spring 42, having; one end secured to a lug on the rock-shaft and the other end to the roll 22, serves to keep the arms 49 and 41 in contact with their cams 35 and 86. Fixed radially in the periphery of the roll 22 is a knife 43 having a serrated cutting; edge. A lso fixedradially in the peripher" of the roll 22 is a bar 44 separated a short distance from the knife 43 so as to provide a channel between it and the knife 4 hzloving radially in a slot formed in the periphery of the roll 19 is a knife 45 having a serrated beveled edge, see Figs. 7, 8 ud 9. This knife is riveted at its ends to blocks 46 and 47. These blocks, together with the knife 45, are arranged to reciprocate between pairs of guide brackets 48 and 49 fixed on the opposite ends of the roll 19. Radial movement is imparted to the knife by cams and 51 which engage the rollers 52 and fixed on the blocks 46 and 47, respectively. Sprh 's and 55 keep these rolls in contact w .11 their cams. .hese s gs are connected at one end to the block. a. i at their other ends to sleeves 56 and 5? fir d in the boxes sup porting the shaft 18 01 roll 19, se Fig. 3. (ams 50 and 51 are fixed n these .t .cnarv sleeves. Riveted to the lower margin a knife 45 is a bar through which loosely pas 1 arallel. with the knife 2. series of bolt; 59 surrounded by springs 60 and at their upper ends screwed into a bar 61 l ng close against the knife and whose upper surface projects slightly alcove the surface of the roll 19. T he springs 60 fit in recesses in the bars 58 and 61. These bars and the knife are located in a radial recess 62 formed in the periphery of the roll 19. Sn the side of the knife 45 opposite to the bars 58 and 61 is another bar 63 which is fixed in the recess 62 in roll 1.9 and forms a guide for the lmife 45 in i s reciprocating; movement.

As shown in the drawings, rolls 19 and 22, instead of being formed with a continuous surface, are formed of separated narrow cylindrical sections each fixed securely upon its shaft. This arrangement saves material and furthermore, in connection with roll 22, enables the arms 38 on rock shaft 37 to be mounted between the sections of that roll. One of the functions of these rolls 19 and 22 is to receive and feed forward the web of paper and, when such paper is crinkled, it is advantageous that one of these rolls be provided with teeth on its pe riphery. In the present instance. the upper roll is provided with teeth 64. These teeth engage the paper and feed it forward reliably and uniformly to the knives 43 and 45 without unduly stretching the paper. If both rolls were smooth faced the feed of the crinkled paper would necessarily depend upon its continuous frictional engagement by and between such smooth faced rolls and the crinkles would be injured and the paper unduly stretched. One of the rolls, as roll 19. may have a smooth surface, as shown.

In the operation of the rolls 19 and 22 and their knives, see Figs. 5 and 9, when a predetermined length of the paper web has passed between the rolls and just before the knives 43 and 45 come into alinement, bar 61, which proicts sl a'htlv above the periphery of the roll 19. grips the paper between it and the cooperating bar 44 on roll 22. bar 61. owing to its spring; mounting. yielding to the pressure put upon it by the bar 44. At substantially the same time arms 40 and 41 pass bevond the elevated portions of their cotiperatine: cams 35 and 36 and the spring 42 rocks the shaft 37 so as to throw the pins 39 forward and outward through the paper on a line iust back of the knife 43. At substantia ly the same time rollers and 53 of knife 45 pass on to the elevated portions of their cams 50 and 51 thereby movinr: knife 45 outward so as to sever the pa er in 00510- eration with kn fe the rolls 9 and continue their mo ement the knife rollers and 53 travel off of the elevated portions of their cams and knife 45 is retracted by i s sprinos and At the s me time the pins 39 carry the paper which they have engasred around with roll 22 and continue to thus enrzaee the paper until the arms 40 and 41 have traveled sliohtlv hevond three-own ters of a turn when thev ride u on the elevated portions o their cams and thereby retract the pins from ensa ofement with the paper. As the rolls continue their movement he knives repeat their action to out off another length of paper and the pins 39 repeat their action to eno'aqe a new length of pa er iust entering between the rolls.

Fixed on roll 22 and lengthwise tl'ierewith is a foldorm nrr kn fe 65. see and 11. located almost diametrically opposite the pins 39 when the latter are in their en agrinn posit on. When these pins. in em: e ment with a s rip or section of the paper. have traveled slisrhtlv beyond three-quarter turn, the bar 65 will be in the position of its nearest approach to roll 9 and will be lying beneath the strip engaged by the pins. Just as the pins release the paper, folding grippers 66 carried by the roll 9 selze the paper in a fold at the knife 65 thereby carrying the paper doubled over on itself in a fold from roll 22 011 to roll 9. The strip caught by the grippers 66 and being carried over on to roll 9 is not cut off from the web until the roll 22 has traveled slightly beyond another quarter turn. By this rangement, the lower fold of the strip on roll 9 is slightly longer than the upper fold, as shown in Fig. 14. The grippers 66 are mounted on the rock shaft 67 carried by the roll 9, the grippers projecting between the sections composing the roll. The ends of these grippers normally rest on a bar 68 extending across the roll 9 and projecting slightly beyond its surface. Rock shaft 67 is provided with arms 69 and 70 having cam rollers on their ends which ride on the cams 71 and 72, see Fig. 1. These cams are fixed on stationary sleeves 73 and Tet surrounding the shaft 8 of roll 9, being rigidly held in place by the boxes which carry the shaft 8. A spring 7 5, see Fig. 10, connected at one end to a lag 76 on the shaft 67 and at the other end to the roll 9 serves to keep the grippers 66 normally down upon their gripper bar 68 and the arms 69 and 70 in engagement with their cams. When the grip pers come opposite the fold-forming knife 65 of roll 22, in the position shown in Figs. 10 and 11. the arms 69 and 70 pass off of the elevated portions of their cams and the grippers 66 form a. crease in the paper in conjunction with knife 65 and bar 68. Knife 65 is DI'OVlFlQtl with recesses 77 to enable the grippers 66 to pass through the knife carrying with them the fold in the paper and press ing the fold against bar 68. The grippers 66 continue to grip the paper until they have made a half turn from the position shown in 10 when thev are retracted to release the paper due to the action of cams 71 and 72 and spring 75.

The chief function of roll 9. in conjunction with roll 12. is to form the seam and paste together the abutting edges of the folded sheet. For this purpose roll 9 is provided with seaming devices including pasting devices which will now be described. referring particularly to Figs. 12 to 16, inclusive. Across the surface of roll 9 extends a recess 78 in which loosely rests a bar 79 connected at its ends with and carried by side arms 80 and 81. Each of these arms is provided with a slot 82 one slot being associated with sleeve 78 and the other with sleeve 74- surrounding the shaft 8. These arms are provided with cam rollers 83 and 8 1 which ride on cams 85 and 86 fixed on sleeves 73 and 74. Each 'of these arms 80 and 81 is provided with three springs 87,

88 and 89 which are connected at one end to the arms and at the other end to the roll 9 and act to return these arms and bar 7 9 to their normal position when they have been moved therefrom. Cams 85 and 86 act to move the arms and the bar 79 radially outward. The ends of the arms 80 and 81 opposite the bar 79 extend beyond the shaft 8 and each is provided with a slot 90 in which works a roller 91. These rollers are carried by clips 92 and 93 mounted on pins 94. and 95 and carry cam rollers 96 and 97 which engage the cams 98 and 99 on the sleeves 73 and 74. Mounted on the periphery of the roll parallel with the bar 79 and immediately forward thereof is a channel bar 100 provided with the crease-forming channel 101.

Coiiperating with the channel bar 100 are grippers 102 mounted on the rock shaft 103 carried by the roll 9, see Figs. 4:, 12 and 13. Fixed to this rock shaft are arms 104: and 105 having cam rollers which engage the cams 106 and 107 fixed on the sleeves 73 and 74. A spring 108 having one end fixed to the roll 9 and the other end fixed to a lug secured to rock shaft 103 acts to hold the cam arms down on their cams and tends to throw the grippers 102 forward against the front wall of the channel 101. The rear side of the channel bar 100 is provided with recesses 109 to permit the grippers 102 to pass through toward the front wall of the channel 101. The roll 9 is provided with a smooth surface and is composed of separate sections like the roll 19.

Cotiperating with the roll 9 is the seaming and pasting roll 12 composed of separated sections and having teeth thereon similar to the roll. 22. This roll is provided with a paste carrying bar 110 extending across its periphery anc with the crease-forming knife 111 immediately forward of the bar 110. lit is provided with recesses similar to and registering with recesses 109 in channel bar 100 to permit the grippers 102 to pass through to engage the paper before the knife retreats from the channellOl.

In the operation of the seaming and pasting rolls 9 and 12, when the rear edges of the folded strip of paper have come between the rolls 9 and 12, the excess margin of the lower fold of the paper constituting the seam flap 112 is squeezed between the paste carrying bar 110 and the bar 79, thereby applying paste to the upper surface of the seam flap. While this is being done, the crease-forming knife 111 has entered the crease channel 101 carrying both folds of the paper with it to form the seam crease. In the meantime, the cam arms 104: and 105 have passed on to the lower portions of their cams thereby throwing the grippers 102 forward to press the paper against the front wall of channel bar 100. The position &

of the parts at this stage is shown in Fig. 12. As the rolls continue their movement, knife 111 moves out of the crease lying within the crease channel and the grippers 102 continue to press the crease against the front wall of the crease channel. The crease in the paper at this stage and the position of the bar 79 is shown in Fig. 14. As the rolls continue their movement, arms 80 and 81 are elevated by their cams 85 and 86 thereby causing the bar 79 to lift the seam flap 112. As the roll 9 continues its movement, rolls 96 and 97 of cam clips 92 and 93 ride up on the elevated portions of their cams 98 and 99 thereby throwing the bar 79, now elevated, forward to carry the flap 112 over the outer fold of the paper and also over the narrow seam flap 113 thereof. Immediately thereafter the bar 79, owing to the shape of the cams 85 and 86. and the action of springs 87, 88 and 89, moves inward. These three movements of the bar 79, outward, then forward, then inward, bring the underside of the bar 79 on top of the flap 112 as the same lies upon the outer surface of the upper fold of the paper, and the parts are in the position shown in Fig. 16. The flap 112, having paste on its under surface, is now pressed down by bar 79 upon and pasted to the outer surface of the outer fold of the paper. While the parts are in this position, shown in Fig. 16. the bar 79 is squeezed down firmly to effect a secure pasting of the seam flap by means of a bar 114 carried by four arms 115 mounted on the shaft 116. The shaft 116 is driven by a gear 117 fixed on the shaft and meshing with gear 7 fixed on shaft 8. The folded strip of paper upon which the parts have operated to form the seam is now in the form of a tube indicated by the numeral 118 whose extent is half the circumference of the roll 9. After the operation of the squeezing bar 114 has been completed, bar 79 is restored to its normal position in the recess 78 by means of its cams and springs.

For the purpose of carrying paste to the paste carrying bar 110, a bar 119 is provided. It is mounted on a plurality of arms 120 fixed on shaft 121 on which is mounted the gear 122 meshing with gear 10, see Fig. 1. 123 is a paste box carried by two brackets 124 secured to the main frame. The paste roll 125 rotates in the paste box and is carried on the shaft 126 mounted on the brackets 124 which shaft is driven from the ear 122. The paste bar 119, coming in contaat with the paste roll 125, receives its supply of paste which it in turn applies to the paste bar 110. Cooperating with the roll 9 is a series of flat springs 127 fixed on a rod 128 and bearing down upon the upper surface of the roll to smooth the paper against the roll, see Figs. 2 and 20.

Tube 118 is removed from the machine by the mechanism that will now be described, see Figs. 1v and 2. 129 is a receiving pan having a high back and a sloping bottom. It is located between the rear horizontal extension of the main frame on which it is arranged to slide to and fro. For this purpose angle brackets 130 are secured to the back of the pan on either side and to U-shaped slide bars 131 which ex tend from the front of the pan to a shortdistance in the rear thereof. These slide bars are held in place by guide bars 132, see Fig. 19. Bolted to the slide bars 131 are draw bars 133 extending to the rear and provided at their rear ends with rollers 134, see Figs. 17 and 18. These draw bars are provided with slots immediately in front of their rollers 134 through which passes a shaft 136. Fixed to each end of this shaft is a cam 137 and a friction wheel 138, the latter being provided with strips of suitable friction material 189 extending about a third way around their peripheries. By this arrangement, as the shaft 136 rotates, the cams, carried with it, contact with the rollers 134 pushing them to the rear and thereby carrying the pan 129 rearward. When the cams have passed out of contact with the rollers 134, springs 140, see Fig. 2, pull the pan forward into the position shown in Fig. 2. This pan has, thus, a reciprocating movement forward. and backward. The grippers 66 holding the forward end of the tube 118 are retracted by their cams to release the tube when they have arrived just above the forward end of the pan so that this end is deposited in the receiving pan where its forward edge comes to rest against the back of the pan, and the body of the tube after forming one or two loops overhangs the front of the pan, as shown in Fi In order that the rear portion of the tube may overhang the pan the pan is caused to move to the rear by the mechanism already described. When about four-fifths of the tube has been deposited in the pan and the grippers 102 holding the rear end of the tube have reached a. point well in front of the pan they are retracted by their cams, thereby causing the last portion of the tube that leaves the roll 9 to fall outside the front edge of the pan and overhang it. The pan is then moved forward by its springs 140 to bring the front or seamed edge of the tube between the carrier tapes 141 and 142.

These tapes 141 and 142, see Figs. 1 and 2, run over suitable guide pulleys and run in the same direction close together from a point where the tube is deposited between them to and around the roll 143 where they separate, the tapes 142 passing entirely around the roll 143and thence down and back to the starting point, and the tapes 141 passing over the top of the roll 143 and thence around a roll 144 and back to their starting point. The tapes 1412 are driven by the roll 1 13 on the shaft 163 on which are also fixed a sprocket wheel 145, on the near end of the shaft and a second sprocket wheel not shown) on the far end of the shaft. The tapes 1-11 are driven by the roll 1 13 and also by the roll 144 on the same shaft with which is fixed a sprocket wheel 1 16. The sprocket wheel 146 is driven from sprocket wheel 145 by a sprocket chain 164 which passes around the sprocket wheel on the far end of shaft 163, thence partly around sprocket wheel 146 and thence around an idle sprocket wheel 1 18. Shaft 163 is driven by a sprocket chain 1 1? which passes around sprocket wheel 1 15 and around sprocket wheel 1 19 on shaft 156. Shaft 150 is driven by the sprocket chain 151 which passes around a sprocket wheel on shaft 150 alongside the sprocket wheel 149 and thence around the sprocket wheel 152 fixed on the shaft 116. I

On the shaft 136, whose movement actuates the pan 129. is fixed a sprocket wheel 153 which is driven by a sprocket chain 154 which passes around sprocket wheel 153, also part way around sprocket wheel 155 fixed on the shaft 150, thence over two sprocket pulleys back to sprocket wheel 153.

@n the rock shaft 156 is fixed an ordinary paper delivery fly 162 having a stop bar 15'? near its lower end. Mounted on the rock shaft 156 is a pulley 158, see Figs. 18 and 17 to which is fixed one end of the strap 159, the other end of the strap being connected with a spring 160 fastened to the main frame, see Fig. 1. Shaft 156 also carries a friction pulley 161 arranged to cooperate with the friction wheel 138, for which purpose the friction strip 139 on the wheel 136 is provided. When friction wheel 138 rotates, its friction surface drives pulley 161 during the time that the friction strip is in contact wi h this pulley, thereby rocking the shaft 156 and causing the delivery a 162 to move backward from its receiving position shown in 1 to deposit the paper tubes on a table that have been delivered to it by the tapes 14:1 and 1412. When the friction strip 139 has passed out if contact with the pulley 161, the strap 159 make the shaft 136 backward to return the delivery fly to its receiving position.

When the front or seamed edge of the paper tube has been caught between the tapes 141 and 1 1-2 upon the forward movement of the pan 129, the tube is carried by these tunes over the roll 1413 from which it is deposited upon the delivery fly 162, the stop bar 157 preventing the tube from sliding off the fly.

Vi hile the specific machine herein shown and described is primarily designed as a whole to work on crinkled paper and to form tubes thereof, various features and combinations thereof may be advantageously employed to work on plain paper and in the fabrication of various articles, as will be readily understood. '1 he invention in its broader aspect is not restricted, therefore, to mechanism for working on crinkled paper only or designed to fabricate only tubes. Furthermore, if desired, the paper may be fed to the machine in separate sheets instead of from a roll in the form of a continuous web.

\Vhat I claim is:

1. In a machine of the character described, a support for the paper having a crease-forming channel therein transverse to the direction of travel of the paper; a crease-forming knife coiiperating with said channel; and flap-folding means carried by said support adapted to fold a flap of the paper projecting from the channel at one side thereof down upon the paper projecting from the channel at the other side.

2. In a machine of the character described, a support for the paper having a crease-forming channel therein transverse to the direction of travel of. the paper; a crease-forming knife coiiperating with said channel; flap-folding means carried by said support adapted to fold a flap of the paper projecting from the channel at one side thereof down upon the paper projecting from the channel at the other side; and means for applying an adhesive substance to unite the flap to the body of the paper.

3. In a machine of the character described, a. support for the paper having a crease-forming channel therein transverse to the direction of travel of the paper; a crease-forming knife coiiperating with said channel; and flap folding means adapted to fold a flap of the paper projecting from the channel at one side thereof down upon the paper projecting from the channel at the other side, said means comprising a bar normally extending beneath the flap, and devices for actuating it.

4. In a machine of the character described, a support for the paper having a crease-forming channel therein transverse to the direction of travel of the paper; a crease-forming knife cotiperating with said channel; flap-folding means carried by said support adapted to fold flap of the paper projecting from the channel at one side thereof down upon the paper projecting from the channel at the other side; and grippers to hold the crease in the channel during the operation of said flap-folding means.

5. In a machine of the character described, a supporting roll for the paper having a crease-forming channel therein transverse to the direction of travel of the paper; a crease-forming knife coiiperating with said channel; and flap-folding means carried by said roll adapted to fold a flap of the paper project-ing from the channel at one side thereof down upon the paper projectin from the channel at the other side.

6. n a machine of the character described, a supporting roll for the paper having a crease-forming channel therein transverse to the direction of travel or" the paper; a crease-forming knife cooperating with said channel; flap-folding means carried by said roll adapted to -lold a flap of the paper projecting from the channel at one side thereof down upon the paper projecting from the channel at the other side; and means for applying an adhesive sub stance to unite the flap to the body of the 7 In a machine of the character described, a supporting rollfor the paper having a crease-forming channel therein transverse to the direction of travel of the paper; a creaseforming knife cooperating with said channel and'flapd'olding means adapted to fold a flap of the paper projecting from the channelat the other side, said means comprising a bar normally extending beneath the flap, and devices for actuating it.

8. In a machine of the character described, a supporting roll for the paper having a crease-forming channel therein transverse to the direction of travel of the paper; a creasetorming knife cooperating with said channel; flap-folding means carried by said roll adapted to fold a flap of the paper projecting from the channel at one side thereof down upon the paper projecting from the channel at the other side; and grippers to hold the crease in the channel during the operation ofsaid flap-folding means.

9. In a machine of the character described, a support for the paper having a crease- :Eorming channel therein transverse to the 'direction of travel of the paper; a creaseforming knife cooperating with said channel; flap-folding means adapted to fold a flap of the paper projecting from the channel atone side thereof down upon the paper projecting from the channel at the other side, said means comprising a bar normally extending beneath the flap, and devices for actuating it; and means for applying an ad hesive substance to unite the flap to the body of the paper.

10. In a machine of the character described, a support for the paper having a crease-forming channel therein transverse to the direction of travel of the paper; a creaseforming knife cooperating with said channel; flap-folding means adapted to fold a flap of the paper projecting from the channel at one side thereof down upon the paper projecting from the channel at the other side, said means comprising a bar normally extending beneath the flap, and devices for actuating it; and grippers to hold the crease in the channel. during the operation of said flap-folding means.

11. In a machine of the character described, a support for the paper having a crease-forming channel therein transv rse to the direction of travel of the paper; a creaseforming kni'le cooperating with said channel; flap-folding means adapted to old a flap of the paper projecting from the chan nel at one side thereof down upon the paper projecting from the channel at the other side, said means comprising a bar normally extending beneath the flap and devices for actuating it; means for applying an adhesive substance to unite the "flap to the body of the paper; and grippers to hold the crease in the channel during the operation of said flap-folding means.

12. In a machine oil the character described, a supporting roll for the paper having a crease-forming channel therein transverse to the direction of travel of the paper; a crease-forming knife cooperating with said channel; flap-"folding means adapted to fold a flap of the paper projecting from the channel at one side thereof down upon the paper projecting from the channel at the other side, said means comprising a bar nor mally extending beneath the flap, and devices for actuating it; and grippers to hold the crease in the channel during the operation of said flap-folding means.

13. In a machine of the character described, a supporting roll for the paper having a crease-forming channel therein transverse to the direction of travel of the paper; CIGRSG'IOYIIIIHQ knife cooperating with said channel; flap-folding means carried by said roll adapted to fold a flap of the paper projecting from the channel at one side thereof down upon the paper projecting from the channel at the other side; means for applying an adhesive substance to unite the flap to the body of the paper; and grippers to hold the crease in the channel during the peration of said flue-folding means.

14. In a machine of the character described, a supporting roll for the paper having a crease-forming channel therein transverse to the direction of travel of the paper; a crease-forming knife cooperating with said channel; and flap-folding means adapted to fold a flap of the paper projecting from the channel at one side thereof down upon the paper projecting from the channel at the other side, said means including a bar normally extending beneath the flap, arms carrying said bar and centered on the shaft or" the roll and devices for actuating the arms and bar.

15. In a machine of the character described a supporting roll for the paper having a crease-forming channel therein transverse to the direction of travel of the paper;

means for delivering to said roll a length of paper folded on itself on a line transverse to its direction of travel; a crease-forming knife cooperating with said channel; and flap-folding means adapted to fold a flap of the paper projecting from the channel at one side thereof down upon the paper projecting from the channel at the other side.

16. n]. a machine of the character de scribed, a supporting roll for the paper having a crease-forming channel therein transverse to the direction of travel of the paper; means for severing a length of paper from a web and delivering it to said roll folded on itself on a line transverse to its direction of travel; a crease-forming knife cooperating with said channel; and flap-folding means adapted to fold a flap of the paper projecting from the channel at one side thereof down upon the paper projecting from the channel at the other side.

17. In a machine of the character described, a supporting roll for the paper having a crease-forming channel therein transverse to the direction of travel of the paper; means for severing a length of paper from a web and deliveringit to said roll folded on itself on a line transverse to its direction of travel; crease-forming knife cooperating with said channel; flap-folding means adapted to fold a flap of the paper projecting from the channel at one side thereof down upon the paper projecting from the channel at the other side; and grippers to hold the crease in the channel during the operation of said flap-folding means.

18. in a machine of the character described. a supporting roll for the paper having a crease-forming channel therein transverse to the direction of travel of the paper; means for severing a length of paper from a web and delivering it folded over on itself to said roll; a crease-forming knife cooperating with said channel; flapfolding means adapted to fold a flap of the pa er projecting from the channel at one side thereof down upon the paper projecting from the channel at the other side said means comprising a bar normally extending beneath the flap and devices for actuating it; and grippers to hold the crease in the channel during the operation of said flap-folding means.

19. In a machine of the character de scribed. a supporting roll for the paper having a crease-forming channel therein transverse to the direction of travel of the paper; means for delivering a folded length of paper to said roll; a crease-forming knife cooperating with said channel; and flapfolding means adapted to fold a flap of the paper projecting from the channel at one side thereof down upon the paper projecting from the channel at the other side said means comprising a bar normally extending beneath the flap, and devices for actuating it.

20. In a machine of the character described, a pair of cooperating rolls arranged to receive between them a web of paper; means associated with one of the rolls for engaging the Web to conduct a predetermined length of it around on said roll; means associated with said rolls for severing said length of paper from the web; a support; and means to deliver the severed length of paper folded over on itself to the support.

21. In a machine of the character described, a pair of cooperating rolls arranged to receive between them a web of paper; means associated with one of the rolls for engaging the web to conduct apredetermined length of it around on said roll; means associated with said rolls for severin' said length of paper from the web; a support; means to deliver the severed length of paper folded over on itself to the support; associated with said support for forming a seam at the adjoining margins of the folded paper.

22. In a machine of the character described, a pair of cooperating rolls arranged to receive between them a web of paper; means associated with one of the rolls for engaging the web to conduct a predetermined length of it around on said roll; means associated with said rolls for severing said length of paper from the web; a third roll; and means to deliver the severed length of paper folded over on itself to the third roll.

23. In a machine of the character described a pair of cooperating rolls arranged to receive between them a web of paper; means associated with one of the rolls for engaging the web to conduct a predetermined length of it around on said roll; means associated with said rolls for severing said length of paper from the web; a third roll; means to deliver the severed length of paper folded over on itself to the third roll; and means associated with said third roll for forming a seam at the adjoining margins of the folded paper.

24. In a machine of the character described, a pair of cooperating rolls arranged to receive between them a web of paper; means associated. with one of the rolls for engaging the web to conduct a predetermined length of it around on said roll; means associated with said rolls for severing said length of paper from the web; a third roll; grippers on said third roll adapt ed to engage the paper in a fold along a medial line thereof and conduct the paper in a fold on itself around on said third roll; and means associated with said third roll for forming a seam at the rear margins of the folded paper.

25; In a machine of the character described, a pair of cooperating rolls arranged to receive between them a web of paper; means associated with one of the rolls for engaging the web to conduct a predetermined length of it around on said roll; means associated with said rolls for severing said length of paper from the web; a support; means to deliver the severed length of paper folded over on itself to the support; and means associated with said support for forming a seam at the adjoining margins of the folded paper, said means including a crease-forming channel in said support, a crease-forming knife cooperating with said channel and a flap-folding device.

26. In a machine of the character described, a pair of cooperating rolls arranged to receive between them a web of paper; means associated. with one of the rolls for engaging the web to conduct a predetermined length of it around on said roll; means associated with said rolls for severing said length of paper from the web; a third roll; means to deliver the severed length of paper folding over on itself to the third roll; and means associated with said third roll for forming a seam at the adjoining margins of the folded paper, said means including a crease-forming channel in said third roll, a crease-forming knife cooperating with said channel and a fiap-folding device.

27. In a machine of the character described a pair of cooperating rolls arranged to receive between them a web of paper; means associated with one of the rolls for engaging the web to conduct a predetermined length of it around on said roll; means associated with said rolls for severing said length of paper from the web; a third roll, grippers on said third roll adapted to engage the paper in a fold along a medial line thereof and conduct the paper in a fold on itself around on said third roll; and means associated with said third roll for forming a seam at the rear margins of the folded paper, said means including a creaseforming channel in said third roll, a creaseforming knife cooperating with said chan-- nel and a flap-folding device.

28. In a. machine of the character described, a pair of cooperating rolls arranged to receive between them a web of paper; means associated with one of the rolls for engaging the web to conduct a predetermined length of it around on said roll; a foldforming knife on said roll; means associated with said rolls for severing said length of paper from the web; a third roll; grippers on said third roll adapted to engage the paper in a crease at said fold-forming knife and conduct the paper in a fold on itself around on said third roll; and means associated with said third roll for forming a seam at the rear margins of the folded paper.

29. In a machine of the character described, a supporting roll for the paper having a crease-forming channel therein transverse to the direction of travel of the paper; a second roll carrying a crease-forming knife cooperating with said channel; flapfolding means'carried by said roll adapted to fold a flap of the paper projecting from the channel at one side thereof down upon the paper projecting from the channel at the other side; and means carried by said second roll for applying an adhesive substance to said flap.

30. In a machine of the character described, a supporting roll for the paper having a crease-forming channel therein transverse to the direction of travel of the paper; a second roll carrying a crease-forming knife cooperating with said channel; flapfoldin'g means adapted to fold a flap of the paper projecting from the channel at one side thereof down upon the paper projecting from the channel at the other side, said means comprising a bar normally extending beneath the flap, and devices for actuating it; grippers to hold the crease in the channel during the operation of said flap-folding means; and means carried by said second roll for applying an adhesive substance to said flap.

31.111 a machine of the character de scribed. a pair of cooperating rolls arranged to receive between them a web of paper; means carried by one of the rolls for en gaging the web to conduct a predetermined length of it around on said roll; means associated with said rolls for severing said length of paper from the web; a third roll; grippers on said third roll adapted to engage the paper in a fold along a medial line thereof and conduct the paper in a fold on itself around on said third roll, said third roll being provided with a creaseforming channel; flap-folding means carried with said third roll and adapted to fold a flap of the paper projecting from said channel at one side thereof down upon the paper projecting from the channel at the other side; and a fourth roll carrying a crease-forming knife cooperating with said channel and also carrying means for applying an adhesive substance to said flap.

32. In a machine of the character described, a pair of cooperating rolls arranged to receive between them a web of paper; means carried by one of the rolls for engaging the web to conduct a predetermined length of it around on said roll; means associated with said rolls for severing said length of paper from the web; a third roll, grippers on said third roll adapted to engage the paper in a fold along a medial line thereof and conduct the paper in a fold on itself around on said third roll, said third roll being provided with a crease-forming channel; flap-folding means carried with said third roll and adapted to fold a flap of the paper projecting from said channel at one side thereof down upon the paper projecting from the channel at the other side, said means including a bar normally eX- tending beneath the flap, arms carrying said bar and centered on the shaft of the roll and devices for actuating the arms and bar; grippers carried by said third roll to hold the crease in said channel during the operation of said flapfolding means; and a fourth roll carrying a crease-forming knife cooperating with said channel and also carrying means for applying an adhesive substance to said flap.

33. In a machine of the character described, a support for the paper having a crease-forming channel therein transverse to the direction of travel of the paper; crease-forming knife cooperating with said channel; flap-folding means adapted to fold a flap of the paper projecting from the channel at one side thereof down upon the paper projecting from the channel at the other side, said means comprising a bar normally extending beneath the flap, and devices for actuating it; means for applying an adhesive substance to unite the flap to the body of the paper; and a pressure device adapted to con tact with said bar to squeeze down the folded over flap.

34. In a machine of the character described, a supporting roll for the paper having a crease-forming channel therein transverse to the direction of travel of the paper; a crease-forming knife cooperating with said channel; and flap-folding means adapted to fold a flap of the paper projecting from the channel at one side thereof down upon the paper projecting from the channel at the other side, said means including a bar normally extending beneath the flap, arms carrying said bar and cen tered about the shaft of the roll, fixed cams to elevate the bar and move it forward and springs to return it to normal position.

35. In a machine of the character de scribed, a supportingroll for the paper having a crease-forming channel therein transverse to the direction of travel of the paper; a crease-forming knife cooperating with said channel; flap-folding means adapted to fold a flap of the paper project ing from the channel at one side thereof down upon the paper projecting from the channel at the other side, said means including a bar normally extending beneath the flap, arms carrying said bar and centered about the shaft of the roll, fixed cams to elevate the bar and move it forward and springs to return it to normal position; and a pressure device adapted to contact with said bar to squeeze down the folded over 86. In a machine of the character described, a traveling support; means for depositing thereon a sheet of paper folded on itself on a line transverse to its direction of travel; and seam-forming means operatin on the transverse margins of the folded sheet to form a tube.

37. In a machine of the character described, a roll adapted to carry a sheet of paper thereon; a traveling support to receive the paper from said roll; grippers on said support adapted to engage the sheet along a medial line thereof and conduct it in a fold on itself along on said support; and means associated with said support for forming a seam at the adjoining margins of the folded sheet.

38. In a machine of the character described, a roll adapted to carry a sheet of paper thereon; a traveling support to receive the paper from said roll; gri pers on said support adapted to engage t e sheet along a medial line thereof and conduct it in a fold on itself along on said support; and means associated with said support for forming a seam at the adjoining mar ins of the folded sheet, said means inclu ing a crease-forming channel. in said support, a crease-forming knife cooperating with said channel and flap-folding means.

39. In a machine of the character de scribed, a traveling support; means for de positing thereon a sheet of paper folded on itself on a line transverse to its direction of travel; and seam-forming means associated with said support and operating on the transverse margins of the folded sheet to form a tube.

40. In a machine of the character described, a roll adapted to carry a sheet of paper thereon; a second roll to receive the paper from said first mentioned roll; grippers on said second roll adapted to engage the sheet along a medial line thereof and conduct it in a fold on itself around on said second roll; and means associated with said second roll for forming a seam at the ad joining margins of the folded sheet.

41. In a machine of the character de scribed, a roll adapted to carry a sheet'of paper thereon; a second roll to receive the paper from said first mentioned roll; gripiers on said second roll adapted to engage the sheet along a medial line thereof and conduct it in a fold on itself around on said second roll; and means associated with said second roll for forming a seam at the adjoining margins of the folded sheet, said means including a crease-forming channel in said second roll, a crease-forming knife coiiperating With said channel and flapforming means.

42. In a machine of the character described, a roll; means for depositing thereon a sheet of paper folded on itself on a line transverse to its direction of travel; and seam-forming means associated with said support and operating on the transverse margins of the folded sheet to f rm tube.

43. In a machine of the character described, a traveling support adapted to carry a sheet of paper thereon; a roll to re ceive the paper from said traveling support; grippers on said roll adapted to engage the sheet along a medial line thereof and con duct it in a fold on itself around on said roll; and means associated with said roll for forming a seam at the adjoining margins of the folded sheet.

In a machine of the character described, the combination of a traveling support adapted to carry thereon a sheet of paper folded on itself on line transverse to the direction of travel of the paper; and seam-forming means associated with said support adapted to form a seam at the adjoining margins of the folded sheet transverse to the direction of travel of t 1e paper.

-15. In a machine of the character described, the combination of a supporting roll adapted to carry thereon a sheet of paper folded on itself on a line transverse to the direction of travel of the paper; and seam-forming means associated with said roll adapted to form a seam at the adjoining margins of the folded sheet transverse to the direction of travel of the paper.

46. In a machine of the character described, the combination of a traveling support adapted to carry thereon a sheet of paper folded on itself on a line transverse to the direction of travel of the paper; and seam-forming means associated with said support adapted to form a seam at the adjoining margins of the folded sheet transverse to the direction of travel of the paper, said seam-forming means inch l'ig a crease forming channel in said support, a crease-forming knife cooperating with said channel and flap-folding means.

L7. In a machine of the character described, the combination of a support roll adapted to carry thereon a sheet of p per folded on itself on a line transverse to the direction of travel of the paper; and seam-forming means associated with said roll adapted to form a seam at the adjoining margins of the folded sheet transverse to the direction of travel of the paper, said seam-forming means including a creaseforming channel in said roll, a crease-forming knife cooperating with said channel and flap-folding means.

48. In a machine of the character described, the combination of a supporting roll adapted to carry thereon a sheet of paper folded on itself on a line transverse to the direction of travel of the paper; and seam-forming means associated with said roll adjusted to form a seam at the adjoining margins of the folded sheet transverse to the direction of travel of the paper, said seamforming means including a creaseforming channel in said roll, a crease-forming knife cooperating with said channel and flap-folding means including a bar normally extending beneath a flap formed in the paper adjoining said crease-forming channel, arms carrying said bar and centered on the shaft of the roll and devices for actuating the arms and bar.

In a paper folding mechanism, the combination of a support for the paper having a channel therein adapted to contain a crease or fold the paper; grippers to hold the crease in said. channel; a bar extending across the support at one side of said channel; and means to carry the bar to the opposite side of the channel and back to its initial position.

50. In a paper folding mechanism, the combination of a support for the paper having a channel therein adapted to contain a crease or fold of the paper; grippers to hold the crease in said channel; a bar extending across the support at one side of said channel; and means to carry the bar to the opposite side of the channel and back to its initial position, said means including pivoted arms carrying the bar, to elevate the bar and move it forward and springs to return it to initial position. 7

51. In a paper folding mechanism, the combination of a roll to carry the paper and having a channel in its peripherv parallel with the axis of the roll; grippers to hold a crease or fold in sheet of paper in said vhannel; a bar extending across the roll at one side of said channel; and means to carry the bar to the opposite side of the channel and back to its initial position.

52'. In a paper folding mechanism, the combination of a roll to carry the paper and having a channel in its peripheryparallel with the axis of the roll; grippers to hold a crease or fold in a sheet of paper in said channel; a bar extending across the roll at one side of said channel; and means to carry the bar to the opposite side of the channel and back to its initial position, said including pivoted arms carrying said bar and centered about the shaft of said roll, and cams and springs to actuate said arms and suitably arranged to move the lair from one side of the channel to the other side thereof and back again.

53. A tube making machine comprising means for folding a blank along a line transverse to the direction of movement thereof and means for seaming the blank at its transverse margins.

54. A tube making machine comprising means for folding a blank along a line transverse to the direction of movement thereof and means for seaming the blank at its transverse margins and applying an adhesive to one of said margins.

55. A tube making machine comprising means for cutting a blank, means for folding the blank along a line transverse to the direction of movement thereof and means for seaming the blank at its transverse margins.

56. A tube making machine comprising means for cutting a blanln means for folding the blank along a line transverse to the direction of movement thereof, and means for seaming the blank at its transverse margins and applying an adhesive to one of said margins.

57. A tube making machine comprising means for severing a web to form a blank, means for folding the blank along a line transverse to the direction of movement thereof and means for seaming the blank at its transverse margins.

58. A. tube making machine comprising means for severing a web to form a blank, means for folding the blank along a line transverse to the direction of movement thereof and means for seaming the blank at its transverse margins and applying an adhesive to one of said margins.

59. A tube making machine comprising means for severing a web to form a blank, means for folding the blank along an offcenter line transverse to the direction of movement thereof whereby the margins are disalined, and means for seaming and flapfolding the blank at its transverse disalined margins.

60. A tube making machine comprising means for severing a web to form a blank, means for folding the blank along an offcenter line transverse to the direction of movement thereof whereby the margins are disalined. and means for seaming, flap-folding and pasting the blank at its transverse disalined margins.

61. In a tube making machine; a continuously moving mechanism which comprises means for folding a blank along a line transverse to the direction of movement thereof and means for seaming the blank at its transverse margins.

62. In a tube making machine, a continuously moving mechanism which comprises means for folding a blank along a line transverse to the direction of movement thereof and means for seaming the blank at its transverse margins and applying an ad hesive to one of said margins.

63. In a tube making machine, a continuously moving mechanism which comprises means for cutting a blank, means for folding the blank along a line transverse to the direction of movement thereof and means for seaming the blank at its transverse margins.

6&. In a tube making machine, a continuously moving mechanism which comprises means for cutting a blank, means for folding the blank along a line transverse to the direction of movement thereof, and means for seaming the blank at its transverse margins and applying an adhesive to one of said margins.

65. In a tube making machine, a continu ously moving mechanism which comprises means for severing a web to form a blank, means for folding the blank along a line transverse to the direction of movement thereof and means for seaming the blank at its transverse margins.

66. In a tube making machine, a continuously moving mechanism which comprises means for severing a web to form a blank, means for folding the blank along a line transverse to the direction of movement thereof and means for seaming the blank at its transverse margins and applying an adhesive to one of said margins.

67. In a tube making machine, a continuously moving mechanism which comprises means for severing a web to form a blank, means for folding the blank along an offcenter line transverse to the direction of movement thereof whereby the margins are disalined, and means for seaming and flapfolding the blank at its transverse disalined margins.

68. In a tube making machine, a continuously moving mechanism which comprises means for severing a web to form a blank, means for folding the blank along an oil'- center line transverse to the direction of movement thereof whereby the margins are disalined, and means for seaming, flap-folding and pasting the blank at its transverse disalined margins.

69. In a machine of the character described, a roll having disposed about the periphery thereof gripping means for folding a blank of paper and means for transversely creasing the blank remotely from the fold.

70. In a machine of the character described, a roll having disposed about the periphery thereof gripping means for folding a blank of paper and means for transversely creasing the blank remotely from the fold and means for flap-folding the blank.

71. The method of making a tube which comprises first severing a web to form a blank, then folding the blank doubled upon itself on a transverse line intermediate the severed ends, and then seaming the transverse margins.

72. The method of making a tube which comprises first severing a web to form a blank, then folding the blank doubled upon itself on a transverse line intermediate the severed ends, and then seaming and pasting the transverse margins.

theaveb transversely to form arblank thentransversely folding the blank non-centrally whereby the ends or margins eredisalined, and then seaming :and vpestimg the vtransverse margins.

74;. Theimethodofimakingtubes from a Web of paper which comprises first severing 1 ,seems the Web transuerselysto form ablank, then transversely folding thblanknon-eentrally whereby :the ends or. marginsare. disalined, then seaming the: transverse-margins .and then pasting wand flap-folding the longer transverse margins.

This sggcification signed this 10th day of May, A. 1917.

HOWARD GnWIDMER. 

